Ovaries

Q.

What are the hormones secreted by the placenta?

Q.

Several hormones like hCG, hPL, placental estrogen, and progesterone are produced by the

1. Placenta

2. Ovary

3. Pituitary

4. Fallopian tube

Q.

Signals from a fully developed fetus and placenta ultimately lead to parturition which requires the release of?

1. Oxytocin from foetal pituitary

2. Oxytocin from the maternal pituitary

3. Relaxin from the placenta

4. Estrogen from placenta

Q.

Define parturition.

Q. Activin stimulates and inhibin inhibits the secretion of__________.

1. growth hormone
2. follicle stimulating hormone
3. thyroid hormone
4. cortisol

Q. Activin stimulates and inhibin inhibits the secretion of__________.

1. growth hormone
2. follicle stimulating hormone
3. thyroid hormone
4. cortisol

Q. Which of the following hormones helps to soften the ligaments in the pelvis during later stages of pregnancy?

1. Activin
2. Estrogen
3. Inhibin
4. Relaxin

Q. Graafian follicle contains_______.

1. ovum
2. secondary oocyte
3. both a and b
4. primary oocyte

Q. Antrum is found in:

1. tertiary follicle
2. primary follicle
3. none of these
4. secondary follicle

Q.

Refer to the given figure and choose the correct option regarding its parts labelled as A-F.

1. B -Graafian follicle, F -Corpus luteum

2. C -Graafian follicle, A-Ovum

3. B -Primary follicle, C-Tertiary follicle showing antrum

4. E -Corpus callosum, D-antrum cavity

Q. Choose the correct statements about the function of oestrogen:

1. It is responsible for the maturation of ovarian follicles and the release of ovum.
2. It is responsible for the proliferation of the uterine lining.
3. It doesn't promote the growth of mammary glands.
4. It promotes the development of other secondary sexual characteristics such as appearance of axillary and pubic hair, etc.

Q.

Assertion: Newly developed oogonia cells get infiltrated by certain somatic cells in the ovary.

Reason: This infiltration occurs to lay down formation of primordial follicles. Layer of somatic cells surrounds the oocyte and the somatic cells differentiate into granulosa cells.

1. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
3. If both Assertion and Reason are false.
4. If Assertion is true but Reason is false.

Q. Burst the bubbles with the hormones that play a role in the menstural cycle in humans:

1. FSH
2. LH
3. Glucagon
4. Insulin
5. GnRH
6. Adrenaline
7. Estrogen
8. Progesterone

Q.

Match the hormones with the event they control in menstrual cycle

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. FSH}& \text{a. ovulation}\\ \text{ii. LH}& \text{b. surge of LH}\\ \text{iii. Progesterone}& \text{c. Development of ovarian follicle}\\ \text{iv. Oestrogen}& \text{d. maintenance of pregnancy}\end{array}$

1. i. a, ii. b, iii. c, iv. d

2. i. c, ii. a, iii. d, iv. b

3. i. d, ii. b. iii. c, iv. a

4. i. b, ii. c, iii. d, iv. a

Q.

Given below is an incomplete table on certain hormones, their source glands and one major effect of each on the body in humans. Identify the correct option for the three blanks A, B and C.
$\begin{array}{ccc}Glands& Secretion& EffectonBody\\ A& Oestrogen& Maintenanceofsecondarysexualcharacters\\ AlphacellsofIsletsofLangerhans& B& Raisesbloodsugarlevel\\ Anteriorpituitary& C& Oversecretionleadstogigantism\\ Visualpigment& Iodopsin& Rhodopsin\end{array}$

1. A-Placenta; B-Glucagon; C-Calcitionin

2. A-Ovary; B-Glucagon; C-Growth hormone

3. A-Placenta; B-Insulin; C-Vasopressin

4. A-Ovary; B-Insulin; C-Calcitonin

Q.

The hormone(s) that control(s) the menstrual cycle in human beings is

1. FSH

2. LH

3. Progesterone

4. FSH, LH, Estrogen

Q.

All of the following are associated with the ovary except the -

1. Inner medulla

2. Germinal epithelium

3. Tunica albuginea

4. Pheripheral cortex

Q. ________ is present inside the Graafian follicle.

1. Primary oocyte
2. Ovum
3. Secondary oocyte
4. Tunica albuginea